It is a dual stainless steel glove box designed for researchers in material science, chemistry, semiconductor, and related topics. The purification cylinder is made of BASF antioxidant materials from Germany and UOP water adsorbent materials from the US in order to achieve a low water and oxygen concentration of lower than 1ppm, such that experiments can be conducted in an ultra clean and highly purified gas environment. It is integrated with vapor pressure control system, purity control system, automatic gas purity regeneration control system, auto alarm, and system data log recording. It is widely used in preparing nanomaterials, Li-ion battery materials, catalysts, and metallorganics.